Cutting board



FIG. 1 is a perspective of a cutting board inserted in a sink, the sink being shown in phantom;

FIG. 2 is a perspective of the cutting board removed from the sink;

FIG. 3 is a front elevation thereof;

FIG. 4 is a right elevation thereof, the left elevation thereof being a mirror image;

FIG. 5 is top view thereof;

FIG. 6 is bottom view thereof; and,

FIG. 7 is a rear elevation thereof.

The phantom lines in the drawings indicate environmental structure which forms no part of the claimed design. 

The ornamental design for a cutting board, as shown and described. 